In Washington today, US officials and U.S. Holocaust Memorial Museum representatives announced the seizure of a long-lost diary maintained by a close confidant of Adolf Hitler.

The recovery of this historical document was the result of an extensive investigation conducted by U.S. Immigration and Customs Enforcement’s (ICE) Homeland Security Investigations (HSI). The author of the so-called "Rosenberg Diary" was Alfred Rosenberg, a leading member of the Third Reich and of the Nazi Party during World War II.

Rosenberg was one of the intellectual authors behind key Nazi beliefs, including persecution of Jewish people, expansionist “lebensraum” (living space) ideology, the "master race" theory, and the rejection of modern art as "degenerate." He was tried at Nuremberg, sentenced to death, and hanged on October 16, 1946, after having been convicted for war crimes and crimes against humanity.

The diary will eventually be displayed in the Holocaust Museum. More photos, video from the press conference where the seizure was announced, video of Rosenberg speaking, and more of the story behind this important historic artifact are below.